User talk:12CAB3

November 2020
Hello, I'm XOR'easter. I wanted to let you know that one or more of your recent contributions&#32;to List of unsolved problems in mathematics have been undone because they did not appear constructive. If you would like to experiment, please use your sandbox. If you have any questions, you can ask for assistance at the Teahouse. Thanks. XOR&#39;easter (talk) 00:55, 24 November 2020 (UTC)